LST Smoke Alarm 2351E User Manual

Optical Smoke Detector  
2351E  
• Addressable conventional technology  
• Sensitivity selectable in 3 steps  
• Addressing by means of address  
module or detector parameterisation  
• Remote readout of detector condition  
• Extremely flat design  
• Function testable with Remote Test  
Unit ECO1000RTU  
Description  
The Optical Smoke Detector 2351E uses the scattered  
light principle, and was developed for the detection of  
smoke particles in a wide range of fire detection applica-  
means of the Remote Programming and Test Unit, is  
displayed on the Zonal Display Unit S300ZDU.  
tions. The modern design of the measurement chamber A test activation of the detector can be carried out  
allows to reliably evaluate the characteristics of fire.  
using the Remote Test Unit ECO1000RTU. In addition to  
the test activation of the detector, the Remote Program-  
An internal drift compensation adjusts the alarm thres- ming and Test Unit S300RPTU can also be used to set  
hold by continually evaluating the contamination of the and display the following detector parameters:  
detector. With that, the sensitivity of the detector is kept • the sensitivity in 3 levels,  
constant for a long time.  
• the detector address, and  
• the date of the previous maintenance.  
Addressable conventional technology is used for alarm Furthermore, the degree of drift compensation (detec-  
transmission to the fire detection control panel. The de- tor contamination) and the current condition of the de-  
tector addressing can be achieved in 2 ways:  
tector can be read out.  
• A detector with an Address Module NG58-1 can be  
individually identified by the suitable control panel.  
The detector can be attached to various detector bases  
• An address, which has been stored in the detector by and it can be protected against theft.  
Specifications  
Operating voltage  
Current consumption  
Ambient temperature  
Relative humidity  
Dimensions ø × H  
Colour  
Supply through the detector line voltage  
typ. 75µA (quiescent)  
-30°C to +70°C  
5 – 95% (no condensation)  
102 × 32.5 (mm)  
cream  
Weight  
75g  
Approval  
VdS G202012  
Order number  
Order name  
241040  
Optical Smoke Detector/Conv./300/SS 2351E  
Building Safety. Building Security.  
A
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2351E_DBL_LST_EN_0804.PDF • PAGE 1  
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